Home / 18,364.79-25,307.87-12,386.08

Finding the Fourth Proportional to 18,364.79, 25,307.87 and 12,386.08

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Solution

The fourth proportional to 18,364.79, 25,307.87 and 12,386.08 is: 17,068.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,364.79 : 25,307.87 = 12,386.08 : x
  2. Step 2: Convert to fraction form
    18,364.79/25,307.87 = 12,386.08/x
  3. Step 3: Cross multiply
    18,364.79x = 25,307.87 × 12,386.08
  4. Step 4: Simplify right side
    18,364.79x = 313,465,270.15
  5. Step 5: Solve for x
    x = 313,465,270.15/18,364.79
  6. Step 6: Final answer
    x = 17,068.82

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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.