Home / 13,417.07-18,515.69-7,366.91

Finding the Fourth Proportional to 13,417.07, 18,515.69 and 7,366.91

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Solution

The fourth proportional to 13,417.07, 18,515.69 and 7,366.91 is: 10,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.07 : 18,515.69 = 7,366.91 : x
  2. Step 2: Convert to fraction form
    13,417.07/18,515.69 = 7,366.91/x
  3. Step 3: Cross multiply
    13,417.07x = 18,515.69 × 7,366.91
  4. Step 4: Simplify right side
    13,417.07x = 136,403,292.40
  5. Step 5: Solve for x
    x = 136,403,292.40/13,417.07
  6. Step 6: Final answer
    x = 10,166.40

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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.