Home / 19,639.98-27,103.75-10,688.06

Finding the Fourth Proportional to 19,639.98, 27,103.75 and 10,688.06

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Solution

The fourth proportional to 19,639.98, 27,103.75 and 10,688.06 is: 14,749.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.98 : 27,103.75 = 10,688.06 : x
  2. Step 2: Convert to fraction form
    19,639.98/27,103.75 = 10,688.06/x
  3. Step 3: Cross multiply
    19,639.98x = 27,103.75 × 10,688.06
  4. Step 4: Simplify right side
    19,639.98x = 289,686,547.26
  5. Step 5: Solve for x
    x = 289,686,547.26/19,639.98
  6. Step 6: Final answer
    x = 14,749.84

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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.