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Finding the Fourth Proportional to 9,509.93, 13,124.51 and 5,531.30

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Solution

The fourth proportional to 9,509.93, 13,124.51 and 5,531.30 is: 7,633.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,509.93 : 13,124.51 = 5,531.30 : x
  2. Step 2: Convert to fraction form
    9,509.93/13,124.51 = 5,531.30/x
  3. Step 3: Cross multiply
    9,509.93x = 13,124.51 × 5,531.30
  4. Step 4: Simplify right side
    9,509.93x = 72,595,602.16
  5. Step 5: Solve for x
    x = 72,595,602.16/9,509.93
  6. Step 6: Final answer
    x = 7,633.66

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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.