Home / 13,746.47-18,970.11-7,458.84

Finding the Fourth Proportional to 13,746.47, 18,970.11 and 7,458.84

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Solution

The fourth proportional to 13,746.47, 18,970.11 and 7,458.84 is: 10,293.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.47 : 18,970.11 = 7,458.84 : x
  2. Step 2: Convert to fraction form
    13,746.47/18,970.11 = 7,458.84/x
  3. Step 3: Cross multiply
    13,746.47x = 18,970.11 × 7,458.84
  4. Step 4: Simplify right side
    13,746.47x = 141,495,015.27
  5. Step 5: Solve for x
    x = 141,495,015.27/13,746.47
  6. Step 6: Final answer
    x = 10,293.19

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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.