Home / 10,655.04-15,984.08-5,111.16

Finding the Fourth Proportional to 10,655.04, 15,984.08 and 5,111.16

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Solution

The fourth proportional to 10,655.04, 15,984.08 and 5,111.16 is: 7,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,655.04 : 15,984.08 = 5,111.16 : x
  2. Step 2: Convert to fraction form
    10,655.04/15,984.08 = 5,111.16/x
  3. Step 3: Cross multiply
    10,655.04x = 15,984.08 × 5,111.16
  4. Step 4: Simplify right side
    10,655.04x = 81,697,190.33
  5. Step 5: Solve for x
    x = 81,697,190.33/10,655.04
  6. Step 6: Final answer
    x = 7,667.47

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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.