Home / 13,348.08-18,419.12-7,681.32

Finding the Fourth Proportional to 13,348.08, 18,419.12 and 7,681.32

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Solution

The fourth proportional to 13,348.08, 18,419.12 and 7,681.32 is: 10,599.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.08 : 18,419.12 = 7,681.32 : x
  2. Step 2: Convert to fraction form
    13,348.08/18,419.12 = 7,681.32/x
  3. Step 3: Cross multiply
    13,348.08x = 18,419.12 × 7,681.32
  4. Step 4: Simplify right side
    13,348.08x = 141,483,154.84
  5. Step 5: Solve for x
    x = 141,483,154.84/13,348.08
  6. Step 6: Final answer
    x = 10,599.51

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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.