Home / 10,508.40-14,510.36-9,387.36

Finding the Fourth Proportional to 10,508.40, 14,510.36 and 9,387.36

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Solution

The fourth proportional to 10,508.40, 14,510.36 and 9,387.36 is: 12,962.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,508.40 : 14,510.36 = 9,387.36 : x
  2. Step 2: Convert to fraction form
    10,508.40/14,510.36 = 9,387.36/x
  3. Step 3: Cross multiply
    10,508.40x = 14,510.36 × 9,387.36
  4. Step 4: Simplify right side
    10,508.40x = 136,213,973.05
  5. Step 5: Solve for x
    x = 136,213,973.05/10,508.40
  6. Step 6: Final answer
    x = 12,962.39

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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.