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Finding the Fourth Proportional to 9,988.68, 14,950.16 and 8,895.18

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Solution

The fourth proportional to 9,988.68, 14,950.16 and 8,895.18 is: 13,313.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.68 : 14,950.16 = 8,895.18 : x
  2. Step 2: Convert to fraction form
    9,988.68/14,950.16 = 8,895.18/x
  3. Step 3: Cross multiply
    9,988.68x = 14,950.16 × 8,895.18
  4. Step 4: Simplify right side
    9,988.68x = 132,984,319.75
  5. Step 5: Solve for x
    x = 132,984,319.75/9,988.68
  6. Step 6: Final answer
    x = 13,313.50

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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.