Home / 7,988.04-11,030.52-5,009.04

Finding the Fourth Proportional to 7,988.04, 11,030.52 and 5,009.04

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Solution

The fourth proportional to 7,988.04, 11,030.52 and 5,009.04 is: 6,916.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,988.04 : 11,030.52 = 5,009.04 : x
  2. Step 2: Convert to fraction form
    7,988.04/11,030.52 = 5,009.04/x
  3. Step 3: Cross multiply
    7,988.04x = 11,030.52 × 5,009.04
  4. Step 4: Simplify right side
    7,988.04x = 55,252,315.90
  5. Step 5: Solve for x
    x = 55,252,315.90/7,988.04
  6. Step 6: Final answer
    x = 6,916.88

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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.