Home / 10,689.10-14,750.62-7,507.02

Finding the Fourth Proportional to 10,689.10, 14,750.62 and 7,507.02

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Solution

The fourth proportional to 10,689.10, 14,750.62 and 7,507.02 is: 10,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,689.10 : 14,750.62 = 7,507.02 : x
  2. Step 2: Convert to fraction form
    10,689.10/14,750.62 = 7,507.02/x
  3. Step 3: Cross multiply
    10,689.10x = 14,750.62 × 7,507.02
  4. Step 4: Simplify right side
    10,689.10x = 110,733,199.35
  5. Step 5: Solve for x
    x = 110,733,199.35/10,689.10
  6. Step 6: Final answer
    x = 10,359.45

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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.