Home / 13,711.63-18,903.75-10,888.35

Finding the Fourth Proportional to 13,711.63, 18,903.75 and 10,888.35

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Solution

The fourth proportional to 13,711.63, 18,903.75 and 10,888.35 is: 15,011.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,711.63 : 18,903.75 = 10,888.35 : x
  2. Step 2: Convert to fraction form
    13,711.63/18,903.75 = 10,888.35/x
  3. Step 3: Cross multiply
    13,711.63x = 18,903.75 × 10,888.35
  4. Step 4: Simplify right side
    13,711.63x = 205,830,646.31
  5. Step 5: Solve for x
    x = 205,830,646.31/13,711.63
  6. Step 6: Final answer
    x = 15,011.39

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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.