Home / 11,152.80-15,390.98-6,117.13

Finding the Fourth Proportional to 11,152.80, 15,390.98 and 6,117.13

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Solution

The fourth proportional to 11,152.80, 15,390.98 and 6,117.13 is: 8,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,152.80 : 15,390.98 = 6,117.13 : x
  2. Step 2: Convert to fraction form
    11,152.80/15,390.98 = 6,117.13/x
  3. Step 3: Cross multiply
    11,152.80x = 15,390.98 × 6,117.13
  4. Step 4: Simplify right side
    11,152.80x = 94,148,637.08
  5. Step 5: Solve for x
    x = 94,148,637.08/11,152.80
  6. Step 6: Final answer
    x = 8,441.70

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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.