Home / 7,421.04-11,116.98-5,681.16

Finding the Fourth Proportional to 7,421.04, 11,116.98 and 5,681.16

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Solution

The fourth proportional to 7,421.04, 11,116.98 and 5,681.16 is: 8,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.04 : 11,116.98 = 5,681.16 : x
  2. Step 2: Convert to fraction form
    7,421.04/11,116.98 = 5,681.16/x
  3. Step 3: Cross multiply
    7,421.04x = 11,116.98 × 5,681.16
  4. Step 4: Simplify right side
    7,421.04x = 63,157,342.10
  5. Step 5: Solve for x
    x = 63,157,342.10/7,421.04
  6. Step 6: Final answer
    x = 8,510.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.