Home / 15,430.52-21,294.08-8,356.93

Finding the Fourth Proportional to 15,430.52, 21,294.08 and 8,356.93

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Solution

The fourth proportional to 15,430.52, 21,294.08 and 8,356.93 is: 11,532.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,430.52 : 21,294.08 = 8,356.93 : x
  2. Step 2: Convert to fraction form
    15,430.52/21,294.08 = 8,356.93/x
  3. Step 3: Cross multiply
    15,430.52x = 21,294.08 × 8,356.93
  4. Step 4: Simplify right side
    15,430.52x = 177,953,029.50
  5. Step 5: Solve for x
    x = 177,953,029.50/15,430.52
  6. Step 6: Final answer
    x = 11,532.54

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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.