Home / 9,938.10-14,885.55-5,315.70

Finding the Fourth Proportional to 9,938.10, 14,885.55 and 5,315.70

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Solution

The fourth proportional to 9,938.10, 14,885.55 and 5,315.70 is: 7,962.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,938.10 : 14,885.55 = 5,315.70 : x
  2. Step 2: Convert to fraction form
    9,938.10/14,885.55 = 5,315.70/x
  3. Step 3: Cross multiply
    9,938.10x = 14,885.55 × 5,315.70
  4. Step 4: Simplify right side
    9,938.10x = 79,127,118.14
  5. Step 5: Solve for x
    x = 79,127,118.14/9,938.10
  6. Step 6: Final answer
    x = 7,962.00

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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.