Home / 10,487.28-15,730.92-4,648.08

Finding the Fourth Proportional to 10,487.28, 15,730.92 and 4,648.08

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Solution

The fourth proportional to 10,487.28, 15,730.92 and 4,648.08 is: 6,972.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487.28 : 15,730.92 = 4,648.08 : x
  2. Step 2: Convert to fraction form
    10,487.28/15,730.92 = 4,648.08/x
  3. Step 3: Cross multiply
    10,487.28x = 15,730.92 × 4,648.08
  4. Step 4: Simplify right side
    10,487.28x = 73,118,574.63
  5. Step 5: Solve for x
    x = 73,118,574.63/10,487.28
  6. Step 6: Final answer
    x = 6,972.12

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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.