Home / 15,312,434-21,126,625.76-9,112,510.48

Finding the Fourth Proportional to 15,312,434, 21,126,625.76 and 9,112,510.48

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Solution

The fourth proportional to 15,312,434, 21,126,625.76 and 9,112,510.48 is: 12,572,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,312,434 : 21,126,625.76 = 9,112,510.48 : x
  2. Step 2: Convert to fraction form
    15,312,434/21,126,625.76 = 9,112,510.48/x
  3. Step 3: Cross multiply
    15,312,434x = 21,126,625.76 × 9,112,510.48
  4. Step 4: Simplify right side
    15,312,434x = 192,516,598,645,038
  5. Step 5: Solve for x
    x = 192,516,598,645,038/15,312,434
  6. Step 6: Final answer
    x = 12,572,566.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.