Home / 10,405.17-14,358.92-5,689.35

Finding the Fourth Proportional to 10,405.17, 14,358.92 and 5,689.35

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Solution

The fourth proportional to 10,405.17, 14,358.92 and 5,689.35 is: 7,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.17 : 14,358.92 = 5,689.35 : x
  2. Step 2: Convert to fraction form
    10,405.17/14,358.92 = 5,689.35/x
  3. Step 3: Cross multiply
    10,405.17x = 14,358.92 × 5,689.35
  4. Step 4: Simplify right side
    10,405.17x = 81,692,893.06
  5. Step 5: Solve for x
    x = 81,692,893.06/10,405.17
  6. Step 6: Final answer
    x = 7,851.18

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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.