Home / 12,953.96-17,886.50-10,116.40

Finding the Fourth Proportional to 12,953.96, 17,886.50 and 10,116.40

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Solution

The fourth proportional to 12,953.96, 17,886.50 and 10,116.40 is: 13,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953.96 : 17,886.50 = 10,116.40 : x
  2. Step 2: Convert to fraction form
    12,953.96/17,886.50 = 10,116.40/x
  3. Step 3: Cross multiply
    12,953.96x = 17,886.50 × 10,116.40
  4. Step 4: Simplify right side
    12,953.96x = 180,946,988.60
  5. Step 5: Solve for x
    x = 180,946,988.60/12,953.96
  6. Step 6: Final answer
    x = 13,968.47

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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.