Home / 10,892.16-15,029.21-7,312.32

Finding the Fourth Proportional to 10,892.16, 15,029.21 and 7,312.32

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Solution

The fourth proportional to 10,892.16, 15,029.21 and 7,312.32 is: 10,089.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.16 : 15,029.21 = 7,312.32 : x
  2. Step 2: Convert to fraction form
    10,892.16/15,029.21 = 7,312.32/x
  3. Step 3: Cross multiply
    10,892.16x = 15,029.21 × 7,312.32
  4. Step 4: Simplify right side
    10,892.16x = 109,898,392.87
  5. Step 5: Solve for x
    x = 109,898,392.87/10,892.16
  6. Step 6: Final answer
    x = 10,089.68

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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.