Home / 15,235.09-21,024.59-8,947.57

Finding the Fourth Proportional to 15,235.09, 21,024.59 and 8,947.57

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Solution

The fourth proportional to 15,235.09, 21,024.59 and 8,947.57 is: 12,347.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.09 : 21,024.59 = 8,947.57 : x
  2. Step 2: Convert to fraction form
    15,235.09/21,024.59 = 8,947.57/x
  3. Step 3: Cross multiply
    15,235.09x = 21,024.59 × 8,947.57
  4. Step 4: Simplify right side
    15,235.09x = 188,118,946.01
  5. Step 5: Solve for x
    x = 188,118,946.01/15,235.09
  6. Step 6: Final answer
    x = 12,347.74

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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.