Home / 19,386.08-26,756.16-11,002.40

Finding the Fourth Proportional to 19,386.08, 26,756.16 and 11,002.40

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Solution

The fourth proportional to 19,386.08, 26,756.16 and 11,002.40 is: 15,185.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.08 : 26,756.16 = 11,002.40 : x
  2. Step 2: Convert to fraction form
    19,386.08/26,756.16 = 11,002.40/x
  3. Step 3: Cross multiply
    19,386.08x = 26,756.16 × 11,002.40
  4. Step 4: Simplify right side
    19,386.08x = 294,381,974.78
  5. Step 5: Solve for x
    x = 294,381,974.78/19,386.08
  6. Step 6: Final answer
    x = 15,185.22

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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.