Home / 11,120-15,345.60-6,152.32

Finding the Fourth Proportional to 11,120, 15,345.60 and 6,152.32

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Solution

The fourth proportional to 11,120, 15,345.60 and 6,152.32 is: 8,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120 : 15,345.60 = 6,152.32 : x
  2. Step 2: Convert to fraction form
    11,120/15,345.60 = 6,152.32/x
  3. Step 3: Cross multiply
    11,120x = 15,345.60 × 6,152.32
  4. Step 4: Simplify right side
    11,120x = 94,411,041.79
  5. Step 5: Solve for x
    x = 94,411,041.79/11,120
  6. Step 6: Final answer
    x = 8,490.20

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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.