Home / 8,688.04-11,991.06-5,152.52

Finding the Fourth Proportional to 8,688.04, 11,991.06 and 5,152.52

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Solution

The fourth proportional to 8,688.04, 11,991.06 and 5,152.52 is: 7,111.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.04 : 11,991.06 = 5,152.52 : x
  2. Step 2: Convert to fraction form
    8,688.04/11,991.06 = 5,152.52/x
  3. Step 3: Cross multiply
    8,688.04x = 11,991.06 × 5,152.52
  4. Step 4: Simplify right side
    8,688.04x = 61,784,176.47
  5. Step 5: Solve for x
    x = 61,784,176.47/8,688.04
  6. Step 6: Final answer
    x = 7,111.41

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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.