Home / 19,139.34-26,411.01-10,640.81

Finding the Fourth Proportional to 19,139.34, 26,411.01 and 10,640.81

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Solution

The fourth proportional to 19,139.34, 26,411.01 and 10,640.81 is: 14,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.34 : 26,411.01 = 10,640.81 : x
  2. Step 2: Convert to fraction form
    19,139.34/26,411.01 = 10,640.81/x
  3. Step 3: Cross multiply
    19,139.34x = 26,411.01 × 10,640.81
  4. Step 4: Simplify right side
    19,139.34x = 281,034,407.26
  5. Step 5: Solve for x
    x = 281,034,407.26/19,139.34
  6. Step 6: Final answer
    x = 14,683.60

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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.