Home / 13,292.04-18,335.70-9,319.08

Finding the Fourth Proportional to 13,292.04, 18,335.70 and 9,319.08

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Solution

The fourth proportional to 13,292.04, 18,335.70 and 9,319.08 is: 12,855.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.04 : 18,335.70 = 9,319.08 : x
  2. Step 2: Convert to fraction form
    13,292.04/18,335.70 = 9,319.08/x
  3. Step 3: Cross multiply
    13,292.04x = 18,335.70 × 9,319.08
  4. Step 4: Simplify right side
    13,292.04x = 170,871,855.16
  5. Step 5: Solve for x
    x = 170,871,855.16/13,292.04
  6. Step 6: Final answer
    x = 12,855.20

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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.