Home / 13,955.52-19,230-12,971.10

Finding the Fourth Proportional to 13,955.52, 19,230 and 12,971.10

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Solution

The fourth proportional to 13,955.52, 19,230 and 12,971.10 is: 17,873.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.52 : 19,230 = 12,971.10 : x
  2. Step 2: Convert to fraction form
    13,955.52/19,230 = 12,971.10/x
  3. Step 3: Cross multiply
    13,955.52x = 19,230 × 12,971.10
  4. Step 4: Simplify right side
    13,955.52x = 249,434,253
  5. Step 5: Solve for x
    x = 249,434,253/13,955.52
  6. Step 6: Final answer
    x = 17,873.52

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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.