Home / 9,987.93-13,779.50-5,737.46

Finding the Fourth Proportional to 9,987.93, 13,779.50 and 5,737.46

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Solution

The fourth proportional to 9,987.93, 13,779.50 and 5,737.46 is: 7,915.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,987.93 : 13,779.50 = 5,737.46 : x
  2. Step 2: Convert to fraction form
    9,987.93/13,779.50 = 5,737.46/x
  3. Step 3: Cross multiply
    9,987.93x = 13,779.50 × 5,737.46
  4. Step 4: Simplify right side
    9,987.93x = 79,059,232.49
  5. Step 5: Solve for x
    x = 79,059,232.49/9,987.93
  6. Step 6: Final answer
    x = 7,915.48

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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.