Home / 10,085.61-15,130.47-3,512.31

Finding the Fourth Proportional to 10,085.61, 15,130.47 and 3,512.31

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Solution

The fourth proportional to 10,085.61, 15,130.47 and 3,512.31 is: 5,269.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,085.61 : 15,130.47 = 3,512.31 : x
  2. Step 2: Convert to fraction form
    10,085.61/15,130.47 = 3,512.31/x
  3. Step 3: Cross multiply
    10,085.61x = 15,130.47 × 3,512.31
  4. Step 4: Simplify right side
    10,085.61x = 53,142,901.09
  5. Step 5: Solve for x
    x = 53,142,901.09/10,085.61
  6. Step 6: Final answer
    x = 5,269.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.